I have bought the 2SK216 from Farnell and it has following markings on the TO220 package (from renesas)

J117
1 A1

At the begining I thought it is an error and that they have send me the 2SJ117. I called them and after the "exchange" of goods I'v got the same J117 I called the customer/technical support and they told me that they look in to it. No reply still.... So I thought some of you could help me.

Am I wrong to think that they send me the SJ117?

Since one is p channel and the other n is there a simple non destructive test to verify my claims? The MOS is 8$ a piece and I do not want to destroy it.

You'll need to whip up a test jig to do this.
You'll need a variable voltage supply, something like 0-12 volts.

connect an ohmmeter to Drain and Source .

Connect the negative of power supply to source.
Set power supply to minimum voltage ( below 2V)
connect positive of supply to gate through a 100 ohm resistor.
slowly increase PS voltage and note ohmmeter reading.
if Ohms reading drops as gate voiltage increases, you have an N-channel fet.

to test for the P-channel fet, you reverse the Power supply polarities and repeat.

Anyway just to finish the whole story. They have found out I was right. They contacted Renesas and they confirmed that the transistor in question is 2SJ117 p chanel. Now, in their stock in Leeds the do not have anymore 2SK216 and I have to wait, as well as my small DIY project It seems that japanese transistors are rare in Switzerland. I have found one small seller that is even more expensive than Farnell (wanted like 15$ per transistor).

But, since I am doing my tube preamp for almost 1 year now (stupid decision to have remote controle) 'cos of lack of spare time I am getting use to it. Sometimes I think I should go to some shops by regular HiFi and quit the whole busines.